Question:
If $\frac{\pi}{2}
Solution:
If $\frac{\pi}{2} Given $\sqrt{\frac{1+\sin x}{1-\sin x}}=k$ sec $x$ L.H.S $\sqrt{\frac{1+\sin x}{1-\sin x}}=\sqrt{\frac{1+\sin x}{1-\sin x} \times \frac{1+\sin x}{1+\sin x}}$ (By multiplying dividing by $1+\sin x$ ) $=\sqrt{\frac{(1+\sin x)}{1-\sin ^{2} x}}$ (correction)
Click here to get exam-ready with eSaral
For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.